If I follow this guide(http://howtoforge.com/perfect_server_ubuntu7.10) exactly except disabling root account after install then will my server be secure? If not what can I do to secure it?
Yes, it is secure. To secure it even more, you can prevent brute-force attacks: http://www.howtoforge.com/fail2ban_debian_etch http://www.howtoforge.com/blockhosts_debian_etch http://www.howtoforge.com/preventing_ssh_dictionary_attacks_with_denyhosts
